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Nominal Voltage
48 VDC
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Open Circuit Voltage
51.6V
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Bus Voltage Range
53 to 59 V
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Nominal Capacity
80 Ah at C4 to 42V
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Nominal Energy
3650 Wh at C4 to 42V
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Gravimetric Energy Density
81 Wh / Kg – 37 Wh / lb
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Volumetric Energy Density
80 Wh / liter
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Max Continuous Discharge Current
50 Amps
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Faradic Charge Effi ciency
100%
Operating Conditions
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Operating Temperature Range
-20°C / + 60°C – -4°F / 140°F continuous
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Warm-up Time to be operational
< 20 hours
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Thermal Losses in operation
60 W
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Nr of Cycles
> 2000 Cycles at 80% DoD
Technical Features
- Steel cell case and double stainless steel battery case
- Integrated battery monitoring system (BMS) for monitoring, diagnostics and data logging
- User interface on front panel
- Ready for remote diagnostics and monitoring
- Compatible with any DC power supply and standard telecom rectifi ers
- Scalable with parallel operation
- No memory effect
- Typical failure mode (internal short) does not develop violent energy release – batteries remain in operation with slight loss of performance
- BMS diagnostics alert on anomalies and disconnect the battery in case of serious failure
- Supplementary protection with an independent circuitry in the event of BMS failure
- Integrated low voltage disconnect (LVD)
Applications and Key Benefits
- 48V sodium nickel chloride battery, specifically designed for telecom application. Suitable for:
- Hybrid or off-grid installation
- Installation in remote location
- Use with renewable energy (Wind / Solar)
- Frequent power outages
- Extreme temperature conditions
- Installation with very compact space availability
- Constant performance at -20° to +60°C / -4°F to 140°F
- No cooling required
- >2000 cycles at 80% DoD
- 100% maintenance free in operation
- Allows remote monitoring
- Specific energy 70% lighter and 30% smaller than conventional batteries
- Very low total cost of ownership (TCO) compared to other battery technologies
- Very long shelf life without maintenance
- Capacity to store energy indefinitely when not connected
- No outgassing and zero ambient emission
Sodium Nickel Chloride Technology
- Use of sodium and nickel as active materials, with solid ceramic electrolyte
- Active materials contained in sealed steel sheet cells
- “hot battery” – internal operating temperature around 300°C / 572°F
- Made with 2.58 Volt cells with 140 Wh/kg / 310 Wh/Ib and 280 Wh/liter specific density
- Proven technology for energy storage and clean powering of electric vehicles
Environment
- Zero ambient emission: can be installed in a sealed environment
- Battery outside temperature only few degrees above the ambient temperature
- Efficient material usage and 100% recyclable: stainless steel, nickel, iron, salt, ceramic
- Free of toxic materials: no lead or cadmium
- RoHs compliant
